Exhaust Insulator Reduces Vibration - One (1) Premium Exhaust Insulator; Approximately 3-7/16" x 1-7/16" x 1-1/8"; Note: Some applications vary by specific engine sizes, so it is important to check compatibility/application notes to confirm it will fit your model and/or engine size; Exhaust Insulator; Insulates while reducing vibration; Fits Cadillac/Buick: Rainier 2006-2007 (without air suspension), Regal 1988-1989, Regal 1990-1992 (3.1L), Regal 1993-1996 (3.1L, 3.8L), Deville 1994 (4.9L), Deville 1995 (4.6L, 4.9L), Deville 1996-1999 (Base, Concours), Eldorado 1993 (Base, Touring, 4.9L), Eldorado 1994 (Base), Eldorado 1995 (Base, ETC), Eldorado 1996-1999, Escalade 1999-2010; Premium Heavy Duty Automotive Grade Rubber;